> These super sources include open-source data (such as OpenStreetMap), probe data, sensor derived observations (SDO) and data from a pool of important partners, which include some of the biggest names in the tech industry.

Great, so they'll suck open street map data, but won't contribute back.

IMO if someone wants to compete against Google Maps, then the Chromium open source strategy ought to work well against them. Many players building on an open source map. Not just roads, but full 3D meshes, building annotations, internal maps of public buildings e.g airports e.t.c

Cruise has started rolling our driverless cars in SF at night. Their strategy is mapping all of SF at centimeter accuracy and having every car have a fresh map as it drives around.

For me, that feels like the future of mapping. A fresh map of the world at centimeter accuracy, then hierarchical layers of abstraction with lesser details.